http://www.cic.gc.ca/english/hire/offers.asp
Arranged Employment
Employers who would like to offer a permanent job to a foreign worker wanting to immigrate to Canada can facilitate this with an offer of arranged employment under the Federal Skilled Worker Program. CIC places priority on new Federal Skilled Worker applications with a qualifying job offer.
Processing times: Most cases are finalized within 11 months.
Employers need to:
Provide a qualifying job offer.
If recruiting from overseas, obtain an Arranged Employment Opinion.
Most foreign workers can be recruited as Temporary Foreign Workers while their application for permanent residence is being processed.
There is no requirement for the employer to first offer the position to a Canadian or a permanent resident.
http://www.cic.gc.ca/english/hire/offers.asp